struct timex and Linux adjtimex()

[Konstantin Belousov]

On Thu, Dec 03, 2020 at 10:17:51AM +0000, Poul-Henning Kamp wrote:
> --------
> Konstantin Belousov writes:
> 
> > 1. Implement new syscall, which would take extended struct timex.
> >    ntp_adjtimex() perhaps should be kept for backward compatibility.
> >    [It does not matter where struct timeval is placed in the updated
> >    struct timex, see below].
> 
> That would break all ports with timekeeping software.
Why ?